Difference between revisions of "Lee correlation"

Latest revision as of 11:56, 5 October 2020

Lee correlation is the empirical correlation for the gas viscosity published in 1966.

Lee gas viscosity correlation at T=340F in the PVT software at pengtools.com

\mu_g = \frac{K\ e^{(X\ \rho_g^Y)}}{10000}

^[1]

where

K = \frac{(9.4+0.02\ M_g)\ T^{1.5}}{(209+19M_g+T)}

X = 3.5+\frac{986}{T}+0.001M_g

Y = 2.4-0.2\ X

M_g = 28.967\ SG_g

\rho_g = \frac{1}{62.428} \times \frac{28.967\ SG_g\ p}{z\ 10.732\ T}

560 \le T < 800

100 < P \le 8000

\rho_g

= gas density, g/cm3

\mu_g

= gas viscosity, cp

M_g

= gas molecular weight, dimensionless

p

= pressure, psia

SG_g

= gas specific gravity, dimensionless

T

= temperature, °R

z

= gas compressibility factor, dimensionless

↑ Lee, A. B.; Gonzalez, M. H.; Eakin, B. E. (1966). "The Viscosity of Natural Gases". Journal of Petroleum Technology (SPE-1340-PA).

@@ Line 37: / Line 37: @@
 :<math> z </math> = gas compressibility factor, dimensionless
-=== References ===
+== References ==
 <references>
 <ref name=Lee>{{cite journal